Septic tank



I. GUTMAN SEPTIC TANK June 16, 1931'.

Filed March 7, 1950 INVENER EN a Patented June 16, 1931 IRWIN German, or PITTS U GH, rEnnsr vAivrA j Z SEPTIC TANK Application filed March 7,

My invention relates to septic tanks and more particularly to the cover and bafiie portions thereof, although it is capable of use in I connection with various other structures, such as grease traps, etc.

One object of my invention is to provide a sanitary tank cover of such form that it may be mounted on standard tile sections which form the tank body proper, and which serves as a support for baffles that may be of standard half-round tile or channel pipe sections.

Another object of my invention is to provide an attachment of light weight that may be shipped great distances at low cost, without danger of damage, and whichmay be readily assembled with tank bodies at the place of installation, by unskilled workmen.

Still anotherobject of my invention is to provide a structure wherein it is not necessary to form baflies integrally with any part of the septic tank structure, thus reducing cost of manufacture and losses through damage in handling.

Still another object of my invention is to simplify and improve septic tank structures generally. One form which my invention may take is shown in the accompanying drawings, wherein Figure 1 is a plan view of a tank structure; Fig. 2 is a perspective View, in section, of a portion of the tank cover; Fig. 3 is a vertical sectional View of the structure of Fig. 1; Fig. 4 is a view taken on the line IV-IV of Fig. 1, Fig. 5 shows a modification of the strucmodification thereof.

The tank body is shown as including an upper tile section or crock 5 of ordinary form and provided with an inlet opening 6 and an outlet opening 7 through which sewage or other liquid may be admitted and discharged, through conduits or sewer or drain tile (not shown) in the usual manner.

The tiles 5 and 8 which constitutethe body portion of the tank may be of ordinary form as well-known in the art. It has been customary to form baffles integrally with these tile sections, at the factory, and then ship the tile sections, sometimes through longdistances, to the place of installation. .The cost of such ture of Fig. 3, and Fig. 6 shows still another 1930. Serial No. 433,922.

specially-formed tiles is expensive, a the freight is considerable, and a, considerable. lossresults through-breakage in handling. With bnrned in baffles, septic tank freight rate applies, while pipe withholesis shipped. at a lower rate, as sewer pipe. 1

In order to avoid the :neeessityof forming baflles on these tile sections, I provide a cover 9 that maybe stamped .,f.rom sheet metal or formed otherwise. These covers may be made at a centralpoint and shipped to the customers, who usuallygfind sewer tile readily available at points near home. The metal cover is provided with a down turned flange 10 that Will hold it centralized on the tile 5 and prevent access ofsurfacewater to the tank. Q pairofarcuatefslots are formed by stamping down portionsll. :The slots are of such size that they will receive standard halfround tile or channel pipe sections 12,"whichserve as ,bafiies opposite the openings 6 and/7.. The tongues 11 are provided with; extensions or lugs l3 which serve to hold the bailie memhere 12 against displacement relative to the openings 6 andZ, the belled ends 'of-the meme beri12 preventing them from falling into the tan. I

In Fig; 5,11 show amodifiedarrangement for holding the baflie members securely against displacement, wherein a holding mem so her or IQdll, which may be madefromspring metal,is provided with; down-tirrned ends 15 that; are: sprung into position. over the belled ends of the baffles. i i

In F ig 6, the-baffles are secured against displacementby means of holding members 17- which a're securedto the cover in any suitable manner. The members '17 may be formed from suitable spring metal so that when the baflles are positioned on the cover, the menu-- bers 17 may be sprung over the ends thereof, thereby detachably supporting the baflies.

Not only is a structure made according to i my invention much cheaper than various previous structures and more convenient of 1nstallation, but'in case of clogging, the tiles" may be readily lifted from the tank, the walls of the arcuateslots servingto scrape them clear of adhering solids. The arcuate slots are so positioned that the vertical edges of the bafiie members will abut against the wall of the crock 5, as shown more clearly in Fig. 4, while at the same time, the belled end of the crock 5 provides a passage for the circulation of gases in the upper part of the tank.

Furthermore, since the baffles extend downwardly through the cover plate and into the tank, incoming sewage or liquid is prevented from disturbing the bacteria mat. In a usual type of baflie, the inletopening is only slightly below the upper edge of the baflie over which the sewage may splash when entering. the tank and disturb the mat.

I claim as my invention 1. A cover for septic tanks and the like having a slot therein for permitting insertion of a bafli'e member, and means depending from said cover for supporting the baflie member against displacement in a direction transversely of said member.

2. A cover for septic tanks and the like consisting of a sheet metal member having an arcuate slot formed therein for the reception of a baffie member, and having a downturned flange for holding the'baffle member vertically-alined in a tank body.

3. The combination with a septic tank body having inlet and outlet passages, of a cover therefor having openings, baflie members ex tending through said openings at points adjacent to said passageways, and means for supporting the bafile members against displacement relative to said passages.

4. r The combination with a septic tank body having a passageway through one wall thereof, of a cover therefor having an opening therein, a battle member extending through said opening at a point adjacent to said passage, and means for supporting said bafiie member against-displacement relative to said passage.

5. A septic tank structure comprising. a body and'cover therefor provided with a slot,

a baflie member of half-round belled end tile section extending through said slot, with its enlarged end resting on the top of the cover, and means within said body fmember for preventing displacement of the tile section in a lateral direction.

In testimony whereof I,'the saiCl IRWlN GUTMAN havejhereunto set my hand.

IRWIN GUPMAN. 

